Does collagen make you put on weight? Myths and truths about hydrolysed collagen
April 17, 2026
Written by Amalia Gonzalez
More and more people are incorporating collagen supplements into their daily routine, but this raises some very specific questions: does collagen make you put on weight? Does hydrolysed collagen make you put on weight? Or even, does collagen cause constipation?
In this article, we answer these questions clearly, based on nutritional evidence and without myths.
Does collagen make you put on weight?
No, collagen does not make you gain weight.
Collagen is a structural protein that forms part of the skin, bones, joints and connective tissues. From a nutritional point of view, it is very low in calories and contains no sugars or fats.
Therefore:
• It does not contribute to weight gain
• It does not cause fat accumulation
• It does not cause spikes in blood glucose
When consumed as part of a balanced diet, collagen has no negative impact on body weight.
Does hydrolysed collagen make you gain weight?
Another very common question is whether hydrolysed collagen causes weight gain
. The answer remains clear: no.
Hydrolysed collagen is collagen that has been broken down into smaller peptides to aid absorption. This process:
•
Improves bioavailability
• Does not significantly alter its calorie content
•
Does not turn it into a ‘weight-gaining’ ingredient
If a collagen supplement makes you feel as though you’ve gained weight, this is usually due to added ingredients such as sugars, excessive sweeteners or low-quality formulas, not the collagen itself.
Does collagen cause constipation?
The idea that collagen causes constipation
is another common myth. Under normal circumstances, collagen does not cause constipation.
However, some people may notice slight changes in their digestion when they start taking a new supplement. This is usually related to:
•
Lack of hydration
•
Low fibre intake
•
A period of digestive adjustment
• Unsuitable excipients
To avoid digestive discomfort, it is recommended that you:
•
Drink plenty of water
•
Maintain a high-fibre diet
•
Choose high-quality hydrolysed collagen
•
Adhere to the recommended daily dose
The importance of collagen quality
Not all collagen supplements are the same. The quality of the formula makes all the difference in terms of both effectiveness and digestive tolerance. In the case of GOLD COLLAGEN®, our liquid formulas are designed to:
•
Facilitate collagen absorption
•
Be easily incorporated into your daily routine
•
Avoid unnecessary ingredients that may affect digestion
Choosing a well-formulated collagen is key to obtaining real benefits without unwanted side effects.
Is it worth taking collagen?
Yes, especially from a certain age onwards, when natural collagen production declines. Taken consistently and as part of a healthy lifestyle, collagen can help to:
•
Support skin health
•
Keep joints in good condition
•
Contribute to general well-being from within
In this post, we’ll discuss when to start taking collagen and why. As we age, the body’s collagen production tends to decline, which can lead to a loss of skin elasticity, weak joints and other age-related issues.
Being well-informed is the first step towards making conscious decisions. And in nutricosmetics, quality, consistency and formulation are everything.